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Write the equation of the line described that passes through (-6,8), perpendicular to y = 5x - 15

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Answer:

  • y = - 0.2x + 6.8

Explanation:

Perpendicular lines have negative reciprocal slopes

Given line

  • y = 5x - 15

Perpendicular line is

  • y = - 1/5x + b

Using given point (-6, 8), finding y-intercept

  • 8 = - 1/5*(-6) + b
  • 8 = 6/5 + b
  • b + 1/2 = 8
  • b = 8 - 1.2
  • b = 6.8

So the line is

  • y = - 0.2x + 6.8
User Dmitry Nelepov
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